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wakaba |
1.1 |
package Whatpm::HTML::Serializer; |
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use strict; |
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our $VERSION=do{my @r=(q$Revision: 1.1 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r}; |
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sub get_inner_html ($$$) { |
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my (undef, $node, $on_error) = @_; |
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## Step 1 |
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my $s = ''; |
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my $in_cdata; |
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my $parent = $node; |
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while (defined $parent) { |
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if ($parent->node_type == 1 and |
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$parent->namespace_uri eq 'http://www.w3.org/1999/xhtml' and |
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{ |
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style => 1, script => 1, xmp => 1, iframe => 1, |
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noembed => 1, noframes => 1, noscript => 1, |
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}->{$parent->local_name}) { ## TODO: case thingy |
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$in_cdata = 1; |
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} |
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$parent = $parent->parent_node; |
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} |
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## Step 2 |
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my @node = @{$node->child_nodes}; |
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C: while (@node) { |
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my $child = shift @node; |
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unless (ref $child) { |
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if ($child eq 'cdata-out') { |
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$in_cdata = 0; |
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} else { |
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$s .= $child; # end tag |
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} |
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next C; |
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} |
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my $nt = $child->node_type; |
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if ($nt == 1) { # Element |
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my $tag_name = $child->tag_name; ## TODO: manakai_tag_name |
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$s .= '<' . $tag_name; |
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## NOTE: Non-HTML case: |
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## <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/11191> |
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my @attrs = @{$child->attributes}; # sort order MUST be stable |
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for my $attr (@attrs) { # order is implementation dependent |
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my $attr_name = $attr->name; ## TODO: manakai_name |
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$s .= ' ' . $attr_name . '="'; |
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my $attr_value = $attr->value; |
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## escape |
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$attr_value =~ s/&/&/g; |
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$attr_value =~ s/</</g; |
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$attr_value =~ s/>/>/g; |
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$attr_value =~ s/"/"/g; |
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$s .= $attr_value . '"'; |
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} |
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$s .= '>'; |
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next C if { |
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area => 1, base => 1, basefont => 1, bgsound => 1, |
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br => 1, col => 1, embed => 1, frame => 1, hr => 1, |
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img => 1, input => 1, link => 1, meta => 1, param => 1, |
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spacer => 1, wbr => 1, |
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}->{$tag_name}; |
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$s .= "\x0A" if $tag_name eq 'pre' or $tag_name eq 'textarea'; |
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if (not $in_cdata and { |
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style => 1, script => 1, xmp => 1, iframe => 1, |
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noembed => 1, noframes => 1, noscript => 1, |
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plaintext => 1, |
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}->{$tag_name}) { |
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unshift @node, 'cdata-out'; |
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$in_cdata = 1; |
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} |
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unshift @node, @{$child->child_nodes}, '</' . $tag_name . '>'; |
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} elsif ($nt == 3 or $nt == 4) { |
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if ($in_cdata) { |
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$s .= $child->data; |
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} else { |
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my $value = $child->data; |
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$value =~ s/&/&/g; |
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$value =~ s/</</g; |
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$value =~ s/>/>/g; |
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$value =~ s/"/"/g; |
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$s .= $value; |
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} |
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} elsif ($nt == 8) { |
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$s .= '<!--' . $child->data . '-->'; |
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} elsif ($nt == 10) { |
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$s .= '<!DOCTYPE ' . $child->name . '>'; |
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} elsif ($nt == 5) { # entrefs |
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push @node, @{$child->child_nodes}; |
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} else { |
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$on_error->($child) if defined $on_error; |
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} |
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## ISSUE: This code does not support PIs. |
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} # C |
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## Step 3 |
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return \$s; |
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} # get_inner_html |
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=head1 LICENSE |
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Copyright 2007 Wakaba <w@suika.fam.cx> |
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This library is free software; you can redistribute it |
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and/or modify it under the same terms as Perl itself. |
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=cut |
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1; |
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## $Date:$ |
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